TMlSkinSpinEdit

Notes

• Read and write the number through Value, bounded by MinValue and MaxValue.
• StepSize is how much each arrow click adds or subtracts; the default is 1.
• The arrows fire OnUpButtonClick and OnDownButtonClick.

Example

From the demo MlSkin.Demo.滚动消息栏.v3.0 (.dfm form file)

object se1: TMlSkinSpinEdit
  Left = 211
  Top = 34
  Width = 58
  Height = 26
  Cursor = crIBeam
  MinValue = 1
  MaxValue = 1000
  Value = 15
  FontHint.Charset = DEFAULT_CHARSET
  FontHint.Color = 11711154
  FontHint.Height = -11
  FontHint.Name = 'Tahoma'
  FontHint.Style = []
  BorderNormal = 'MlSkinBorderNormal'
  BorderHot = 'MlSkinBorderHot'
  Text = '15'
  EdItems = <
  ...

Properties 13

Name	Type	Default	Description
MinValue	Integer	0	Lowest value allowed.
MaxValue	Integer	100	Highest value allowed.
StepSize	Integer	1	How much one arrow click adds or subtracts; the default is 1.
Value	Integer	0	The current number; values outside MinValue–MaxValue are clamped back into range.
FontHint	TFont	—	Font of the placeholder text, usually lighter than the main text.
BorderNormal	TMlResID	—	Border image in the normal state, given as an image ID or path.
BorderHot	TMlResID	—	Border image used on hover or while focused.
ReadOnly	Boolean	False	Read-only: the content cannot be edited, but it can still be selected and copied.
Text	string	—	The text shown or typed in the control.
TextHint	string	—	Placeholder text shown in a light color while the control is empty, for example "Type a keyword".
MaxLength	Integer	0	Maximum number of characters; 0 means no limit.
EdItems	TMlEditItems	—	The items inside the edit: each has its images (normal, hot, pressed), text, position and visibility — this is how clear, search or reveal-password buttons are built.
Space	TMlSpaceSize	—	Padding between the text and the border (left, top, right, bottom); switch its Active on first.

Events 3

Name	Type	Default	Description
OnUpButtonClick	TNotifyEvent	—	Fires when the up arrow is clicked.
OnDownButtonClick	TNotifyEvent	—	Fires when the down arrow is clicked.
OnChange	TNotifyEvent	—	Fires when the content changes.

Properties of TMlSkinPngEdit 3

Name	Type	Default	Description
TextHintHideInKey	Boolean	False	When the placeholder disappears: with this on it stays while focused and hides only once a character is typed.
CursorColor	TColor	clBlack	Colour of the caret.
DisableIME	Boolean	False	Disables the IME so only Latin letters and digits can be typed — useful for account or serial number fields.

Properties of TMlSkinCustomControl 5

Name	Type	Default	Description
About	TMlAboutInfo	—	A design-time property: double-clicking it in the Object Inspector opens the MLSkin about box with the component version. It has no effect at run time and is not stored in the .dfm.
Transparent	Boolean	True	Transparent background: the control skips its own fill and shows the form background (image or color) instead.
Color	TColor	clWhite	Background color of the control; ignored while Transparent is on.
AutoInvalidate	Boolean	False	Repaints automatically when the content changes. Turn it on if property changes do not show up.
EraseBackground	Boolean	False	Whether the background is erased before painting; worth toggling if the control flickers.

Events of TMlSkinCustomControl 4

Name	Type	Default	Description
OnDPIChanged	TMlDPIChangedEvent	—	Fires when the screen DPI changes, for example when the window moves to a monitor with a different scaling — a good place to re-adjust anything you draw yourself.
OnBackgroundChanging	TMlBackgroundEvent	—	Fires just before the background changes, giving you a chance to adjust what is drawn.
OnBackgroundChanged	TMlCustomDrawEvent	—	Fires after the background has been drawn, so you can paint on top of it.
OnVisibleChanged	TNotifyEvent	—	Fires when the control is shown or hidden.

Only the properties and events MLSkin adds are listed here. Standard VCL properties such as Align, Anchors, Font and OnClick are available too and behave exactly as on the stock controls.